Process for the preparation of pure hydrates of fluoral and of hexafluoroacetone from hemiacetals
US4642386A · kind A · utility
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5References
8Claims
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Key dates
| Filing date | Jul 16, 1985 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Jul 16, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing pure fluoral hydrate or hexafluoroacetone hydrate which comprises reacting a hemiacetal with the formula ##STR1## wherein R is hydrogen or CF.sub.3, with water in a distillation column, removing respectively the methanol or ethanol produced at the head of the column, and recovering at the bottom of the column the pure hydrate so produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.